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Showing 1–24 of 107 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Atazanavir+ritonavir Clear all
Completed Phase 3 Interventional Results available

Randomized Evaluation of Strategic Intervention in Multidrug Resistant Patients With Tipranavir (RESIST)

NCT00054717
View directory record Official record
Conditions
HIV Infections
Interventions
Tipranavir, Ritonavir(r), Comparator Protease Inhibitor (CPI)
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
630 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
96
States / cities
Phoenix, Arizona • Tucson, Arizona • Berkeley, California + 67 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2014 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Protease Inhibitors on the Pharmacokinetics of Oral Norethindrone Contraception

NCT01667978
View directory record Official record
Conditions
Pregnancy, HIV, AIDS
Interventions
Norethindrone acetate
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 19, 2015 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 1 Interventional

Antiretroviral Drug Interaction Study in Volunteers With HIV

NCT01479361
View directory record Official record
Conditions
HIV, PCP, Toxoplasmosis
Interventions
Atovaquone 750 mg twice daily, Atovaquone 1500 mg twice daily
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 70 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1349572 Drug Interaction Study With Atazanavir/Ritonavir and Atazanavir

NCT00883935
View directory record Official record
Conditions
Healthy Volunteer
Interventions
GSK1349572, Atazanavir 300 mg, Atazanavir 400 mg, Ritonavir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 21, 2009 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of the HIV Protease Inhibitors Atazanavir and Lopinavir/Ritonavir on Cardiovascular Disease Risk Factors

NCT00720590
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Atazanavir, Lopinavir/ritonavir, Placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 24, 2017 · Synced Sep 25, 2026, 11:57 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

HIV Antiretroviral Drugs and Metabolism

NCT00525239
View directory record Official record
Conditions
HIV Infections
Interventions
ritonavir, lopinavir/ritonavir, atazanavir/ritonavir, efavirenz
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 15, 2011 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 3 Interventional Results available

Switch Study to Evaluate F/TAF in HIV-1 Positive Participants Who Are Virologically Suppressed on Regimens Containing FTC/TDF

NCT02121795
View directory record Official record
Conditions
HIV-1 Infection
Interventions
FTC/TDF, F/TAF, Allowed third antiretroviral agent, FTC/TDF Placebo, F/TAF Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
668 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
57
States / cities
Birmingham, Alabama • Phoenix, Arizona • Beverly Hills, California + 40 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 3 Interventional Results available

Multicenter, Randomized, Double-Blind, Double-Dummy, Phase 3 Study of the Safety and Efficacy of Elvitegravir Versus Raltegravir

NCT00708162
View directory record Official record
Conditions
HIV Infection
Interventions
Elvitegravir, Raltegravir, EVG placebo, RAL placebo, Background regimen
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
724 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
94
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Beverly Hills, California + 59 more
Source: ClinicalTrials.gov public record
Updated May 29, 2016 · Synced Sep 25, 2026, 11:57 AM EDT
Withdrawn Phase 3 Interventional

Second-line Treatment of HIV-1 With Ritonavir Boosted Atazanavir or Darunavir With an Optimized NRTI Backbone

NCT01605084
View directory record Official record
Conditions
HIV
Interventions
Atazanavir, Darunavir, Ritonavir, Optimized NRTI backbone
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
14
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2023 · Synced Sep 25, 2026, 11:57 AM EDT
Completed No phase listed Observational

IMPAACT P1080: Psychiatric and Antiretroviral Medication Concentrations in HIV-infected and Uninfected Children and Adolescents

NCT01232361
View directory record Official record
Conditions
ADHD, HIV
Interventions
Not listed
Lead sponsor
International Maternal Pediatric Adolescent AIDS Clinical Trials Group
Network
Eligibility
6 Years to 25 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
21
States / cities
Birmingham, Alabama • Long Beach, California • Los Angeles, California + 15 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2021 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 2 Interventional

Safety and Effectiveness of a New Protease Inhibitor, BMS-232632, in HIV-Positive Patients Who Have Received Previous Treatment

NCT00004584
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanavir, Ritonavir, Saquinavir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
20
States / cities
Birmingham, Alabama • Los Angeles, California • Oakland, California + 17 more
Source: ClinicalTrials.gov public record
Updated May 3, 2011 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Not applicable Interventional Results available

Preservation and Expansion of T-cell Subsets Following HAART De-intensification to Atazanavir/Ritonavir (ATV/r)

NCT00491556
View directory record Official record
Conditions
HIV Infections
Interventions
Early Initiation of Highly Active Anti-Retroviral Therapy, Standard Care
Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 24 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
22
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 4 Interventional

Boosted Atazanavir and Truvada Given Once-Daily - BATON Study

NCT00224445
View directory record Official record
Conditions
HIV Infections
Interventions
Truvada, Atazanavir, Ritonavir
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Foster City, California
Source: ClinicalTrials.gov public record
Updated Jan 9, 2013 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Disulfiram Interactions With HIV Medications: Clinical Implications

NCT00878306
View directory record Official record
Conditions
HIV Infections, Drug Abuse
Interventions
Disulfiram, Disulfiram + Efavirenz, Disulfiram + Atazanavir, Disulfiram + Ritonavir
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 5, 2014 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 3 Interventional Results available

Induction/Simplification With Atazanavir + Ritonavir + Abacavir/Lamivudine Fixed-Dose Combination In HIV-1 Infection

NCT00440947
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus I, HIV Infection
Interventions
Abacavir (ABC)/lamivudine (3TC) + atazanavir (ATV) + ritonavir (/r), Abacavir (ABC)/lamivudine (3TC) + atazanavir (ATV)
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
515 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
62
States / cities
Phoenix, Arizona • Long Beach, California • Los Angeles, California + 43 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2012 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 2 Interventional Results available

HIV Attachment Inhibitor to Treat Human Immunodeficiency Virus 1 (HIV-1) Infections

NCT01384734
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus
Interventions
BMS-663068 400 mg, BMS-663068 800 mg, BMS-663068 600 mg, BMS-663068 1200 mg, Raltegravir 400 mg, Tenofovir 300 mg, Ritonavir 100 mg, Atazanavir 300 mg
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
254 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
13
States / cities
San Francisco, California • Washington D.C., District of Columbia • Coral Gables, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2018 · Synced Sep 25, 2026, 11:57 AM EDT
Completed No phase listed Observational

Tenofovir, Emtricitabine, Efavirenz and Atazanavir Pharmacokinetics in the Aging HIV-Infected Population

NCT01180075
View directory record Official record
Conditions
Human Immunodeficiency Virus
Interventions
tenofovir/emtricitabine/efavirenz (TDF/FTC/EFV), tenofovir/emtricitabine (TDF/FTC), Atazanavir (ATV), Ritonavir, Phlebotomy
Drug · Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 1, 2014 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Not applicable Interventional Results available

Pilot Study of a Raltegravir Based NRTI Sparing Regimen

NCT00814879
View directory record Official record
Conditions
Acquired Immune Deficiency Syndrome, AIDS, Human Immunodeficiency Virus, HIV Infections
Interventions
Raltegravir, Atazanavir, Standard treatment regimen
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
5
States / cities
New Haven, Connecticut • Waterbury, Connecticut • West Haven, Connecticut + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2016 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study With Proton Pump Inhibitor

NCT00357240
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanavir, Atazanavir/Ritonavir, Atazanavir/Ritonavir+Omeprazole
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 50 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Hamilton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 7, 2011 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate Switching From a TDF-Containing Combination Regimen to a TAF-Containing Fixed Dose Combination (FDC) in Virologically-Suppressed, HIV-1 Positive Participants

NCT01815736
View directory record Official record
Conditions
HIV, HIV Infections
Interventions
E/C/F/TAF, E/C/F/TDF, EFV/FTC/TDF, RTV, ATV, FTC/TDF, COBI
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
1,443 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
91
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 59 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2021 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Not applicable Interventional Results available

Pilot Study on the Effect of Adding Raltegravir +/- a Second Drug on HIV Levels in the Gut

NCT00884793
View directory record Official record
Conditions
HIV Infections
Interventions
raltegravir, Study NNRTI, Study PI
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 22, 2012 · Synced Sep 25, 2026, 11:57 AM EDT
Terminated Phase 2 Interventional Results available

Phase IIB Pilot of Atazanavir + Raltegravir

NCT00768989
View directory record Official record
Conditions
HIV
Interventions
Atazanavir, Raltegravir, Ritonavir, Tenofovir/Emtricitabine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
9
States / cities
Phoenix, Arizona • New Haven, Connecticut • Washington D.C., District of Columbia + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2012 · Synced Sep 25, 2026, 11:57 AM EDT
Completed Phase 2 Interventional Results available

Safety of EVG+RTV Administered With Other Antiretroviral Agents for the Treatment of HIV-1 Infection

NCT00445146
View directory record Official record
Conditions
HIV Infections
Interventions
EVG, RTV, ARV regimen
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
Not listed
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
47
States / cities
Pheonix, Arizona • Little Rock, Arkansas • Beverly Hills, California + 44 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2016 · Synced Sep 25, 2026, 11:57 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Acceptability Study of Non-occupational Prophylaxis (PEP) Following Potential Exposure to HIV

NCT01602822
View directory record Official record
Conditions
HIV
Interventions
Tenofovir DF and Emtricitabine; Ritonavir-boosted Atazanavir
Drug
Lead sponsor
Kenneth H. Mayer, MD
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Sep 25, 2026, 11:57 AM EDT